I think it's accepted that most people (especially men) like the idea of sleeping with people outside their relationship but don't for various legitimate reasons. I'm in a long term relationship and have experienced no decrease in desire for other women. I hear different perspectives: it will simmer down; you learn to live with it; it's a need that deserves an outlet. What does /SD/ think? Also, how can non-exclusivity be approached in a loving way? We've had some unhappy conversations about it in the past. Is it worth discussing with your partner even if they probably won't go for it?